Beach sediment dynamics from natural radionuclides point of view Ana del Carmen Arriola Velásquez Universidad de Las Palmas de Gran Canaria, Spain Alicia Tejera Cruz Universidad de Las Palmas de Gran Canaria, Spain Ignacio Alonso Bilbao Universidad de Las Palmas de Gran Canaria, Spain Walter Geibert Alfred Wegener Institute, Germany Ingrid Stimac Alfred Wegener Institute, Germany Fernándo Cámara Artigas University of Milan, Italy Neus Miquel Armengol Universidad de Las Palmas de Gran Canaria, Spain Héctor Eulogio Alonso Hernández Universidad de Las Palmas de Gran Canaria, Spain Jesús García Rubiano Universidad de Las Palmas de Gran Canaria, Spain Pablo Martel Escobar Universidad de Las Palmas de Gran Canaria, Spain This is a section of Ninth International Symposium “Monitoring of Mediterranean Coastal Areas: Problems and Measurement Techniques”(DOI: 10.36253/979-12-215-0030-1) by Laura Bonora, Donatella Carboni, Matteo De Vincenzi, Giorgio Matteucci Firenze University Press Firenze 2022 https://doi.org/10.36253/979-12-215-0030-1.02

Available for academic research purposes

Open Access

Copyright Author(s)

Content licence CC BY-NC-SA 4.0

Metadata licence CC0 1.0

This is original content, published for academic research purposes

 Digital edition XML powered by Booksflow

This work assesses the use of natural radionuclides as tracers of marine sediment dynamic in a heterogeneous beach in Spain. Multivariant statistics was used to evaluate the spatial variability of the activity concentration of natural radionuclides. The statistics applied for the temporal variability showed that some erosion agents influence the activity concentration found for various natural radionuclides during erosion and accumulation periods. The results of the different analysis suggested that the radionuclides studied could be used as tracers of marine sediment dynamic in beaches.

 Natural radionuclides Sand Erosion Tracers Sediment dynamic

It is available online at https://doi.org/10.36253/979-12-215-0030-1.02

References Alonso, I. (1993) - Procesos sedimentarios en la playa de Las Canteras (Gran Canaria), Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria. Alonso, I. and Pérez Torrado, F. J. (1992) - Estudio sedimentológico de la playa de Las Canteras (Gran Canaria). Datos preliminares, Proceeding of the III Congreso geológico de España y VII Congreso Latinoamericano de Geología, Salamanca, España, volume 2, pp. 131–135. Arnedo, M.A., Rubiano, J.G., Alonso, H., Tejera, A., González, A., González, J., Gil, J.M., Rodríguez, R., Martel, P., Bolivar, J.P. (2017) - Mapping natural radioactivity of soils in the eastern Canary Islands, J. Environ. Radioact. 166, 242–258. Arriola-Velásquez, A., Tejera, A., Guerra, J.G., Alonso, I., Alonso, H., Arnedo, M.A., Rubiano, J.G., Martel, P. (2019) - Spatio-temporal variability of natural radioactivity as tracer of beach sedimentary dynamics, Estuar. Coast. Shelf Sci. 231,106476. 10.1016/j.ecss.2019.106476 Arriola-Velásquez, A. C., Tejera, A., G. Guerra, J., Geibert, W., Stimac, I., Cámara, F., Alonso, H., Rubiano, J.G., Martel, P. (2021) - 226Ra, 228Ra and 40K as tracers of erosion and accumulation processes: A 3-year study on a beach with different sediment dynamics, Catena, 207, 105705. 10.1016/j.catena.2021.105705 Balcells, R., Barrera, J. L., Ruiz García, M. T. and (Cartographers) (1990) - Geological Map 1101-I-II Las Palmas de Gran Canaria, 1:25000, vol. 207, IGME. Bezuidenhout, J. (2020) - The investigation of natural radionuclides as tracers for monitoring sediment processes, J. Appl. Geophys. 181, 104135. 10.1016/j.jappgeo.2020.104135 Dai, Z.J., Du, J.Z., Chu, A., Zhang, X.L. (2011) - Sediment characteristics in the North Branch of the Yangtze Estuary based on radioisotope tracers, Environ. Earth Sci. 62, 1629–1634. Gaspar, L., Webster, R., Navas, A. (2017) - Fate of 210Pbex fallout in soil under forest and scrub of the central Spanish Pre-Pyrenees, Eur. J. Soil Sci. 68, 259–269. Guerra, J.G., Rubiano, J.G., Winter, G., Guerra, A.G., Alonso, H., Arnedo, M.A., Tejera, A., Gil, J.M., Rodríguez, R., Martel, P., Bolivar, J.P. (2015) - A simple methodology for characterization of germanium coaxial detectors by using Monte Carlo simulation and evolutionary algorithms, J. Environ. Radioact. 149, 8–18. Guerra, J.G., Rubiano, J.G., Winter, G., G. Guerra, A., Alonso, H., Arnedo, M.A., Tejera, A., Martel, P., Bolivar, J.P. (2017) - Computational characterization of HPGe detectors usable for a wide variety of source geometries by using Monte Carlo simulation and a multi-objective evolutionary algorithm, Nucl. Instruments Methods Phys. Res. Sect. A Accel. Spectrometers, Detect. Assoc. Equip. 858, 113–122. Mangas, J. and Julià-Miralles, M. (2015) - Geomorfología y naturaleza de las bajas submareales de Bajo Fernando, Los Roquerillos y La Zabala (NE de Gran Canaria), Geo-Temas, 15, 37–40. Ravisankar, R., Sivakumar, S., Chandrasekaran, A., Prince Prakash Jebakumar, J., Vijayalakshmi, I., Vijayagopal, P., Venkatraman, B. (2014) - Spatial distribution of gamma radioactivity levels and radiological hazard indices in the East Coastal sediments of Tamilnadu, India with statistical approach, Rad. Phy. and Chem. 103, 89–98. Schmincke, H. U. (1993) - Geological field guide of Gran Canaria, 6th ed. Pluto-Press, Kiel. Thereska, J. (2009) - Natural radioactivity of coastal sediments as tracer in dynamic sedimentology, Nukleonika. 54 (1), 45–50. Thomson, R.E., Emery, W.J. (2014) - The spatial analyses of darta fields, in Data Analysis Methods in Physical Oceanography,3rd ed, ELSEVIER Science, Amsterdam Williams, L.J., Abdi, H. (2010) - Tukey ’s Honestly Signiflcant Difference test (HSD), Encyclopedia of Research Design, June, 2–7.